To get an initiative on the California ballot, you draft a proposed law or constitutional amendment on a single subject, submit it to the state Attorney General with a $2,000 filing fee, and then collect valid signatures from registered voters — 546,651 for a statute or 874,641 for a constitutional amendment under current thresholds — within 180 days, filing the petitions with county elections officials in time for verification at least 131 days before the next statewide election.1California Secretary of State. Statewide Initiative Guide The path is open to any citizen, but the signature phase alone typically costs millions, and small drafting mistakes can sink a measure before voters ever see it.
Decide What Kind of Measure You Are Proposing
The first choice shapes everything that follows. A statutory initiative creates, changes, or repeals a law in the California Codes. Once passed by a simple majority, it carries the same weight as any bill the legislature enacts, and it requires signatures equal to 5% of the votes cast in the most recent gubernatorial election.2Justia. California Constitution Article II Section 8 – Voting, Initiative and Referendum, and Recall
A constitutional amendment changes the state Constitution itself. The passing threshold at the polls is still a simple majority, but the signature bar jumps to 8% of the last gubernatorial vote.2Justia. California Constitution Article II Section 8 – Voting, Initiative and Referendum, and Recall Constitutional measures also enjoy stronger protection from later legislative tinkering, which is one reason proponents sometimes choose that route even when a statute would do.
One boundary worth naming: a referendum is a different tool. It asks voters to reject a bill the legislature has already passed, and proponents have only 90 days from the governor’s signature to qualify it.3California Legislative Information. California Elections Code 9014 Urgency statutes, election laws, and tax or appropriations measures for routine state expenses cannot be challenged by referendum.4California Secretary of State. Referendum If you want to create new law rather than block existing law, you want an initiative.
Two Rules That Can Disqualify Your Measure
Before investing in drafting or signature gathering, check your proposal against two constitutional limits.
The Single-Subject Rule
Every initiative must address only one subject. Article II, Section 8(d) of the California Constitution states that a measure covering more than one subject cannot be placed on the ballot and has no legal effect if it somehow reaches voters.2Justia. California Constitution Article II Section 8 – Voting, Initiative and Referendum, and Recall Courts have invalidated measures that bundled unrelated policies into a single proposition. Keep the text focused on one coherent purpose.
Amendment, Not Revision
Voters can amend the Constitution by initiative, but they cannot revise it. A revision is a sweeping overhaul of the state’s governmental framework, and only the legislature can place one before voters. The California Supreme Court looks at how many provisions change and whether the change fundamentally restructures government power. A measure that shifts core authority between branches or rewrites the basic plan of governance will likely be treated as an impermissible revision and struck down.
File the Text With the Attorney General
Signature gathering cannot begin until the state processes your draft. Submit the full text of the proposed measure to the California Attorney General along with a $2,000 filing fee. The fee is refunded if the measure qualifies for the ballot within two years; otherwise it goes to the state’s General Fund.5California Legislative Information. California Elections Code 9004
Filing triggers a 30-day public review period, during which anyone can submit comments through the Attorney General’s website.6State of California – Department of Justice – Office of the Attorney General. Initiatives – Active Measures The Department of Finance and the Legislative Analyst’s Office jointly prepare a fiscal impact estimate projecting the measure’s effect on state and local budgets.
Once the comment period closes and the fiscal estimate is complete, the Attorney General has 15 days to produce the official circulating title and summary, which cannot exceed 100 words.5California Legislative Information. California Elections Code 9004 The date proponents receive that title and summary is the “official summary date,” and it starts the clock on signature gathering. Every petition page must display this official title and summary.
Signatures and the 180-Day Window
Statutory initiatives need valid signatures from registered voters equal to 5% of the last gubernatorial vote; constitutional amendments need 8%.7California Legislative Information. California Elections Code 9035 Based on the 2022 gubernatorial election, the current thresholds are:
- Statutory initiative: 546,651 signatures
- Constitutional amendment: 874,641 signatures
These numbers reset after the 2026 gubernatorial election.1California Secretary of State. Statewide Initiative Guide
You have 180 days from the official summary date to circulate petitions, collect every signature you need, and file completed petitions with county elections officials. County officials will not accept petitions filed after the deadline.3California Legislative Information. California Elections Code 9014 Petition pages must also carry disclosure statements identifying the measure’s primary financial backers.
In practice, gathering half a million or more valid signatures in six months almost always means hiring professional signature-gathering firms, and most successful campaigns budget several million dollars for this phase. Collecting well above the minimum is standard, because a meaningful share of raw signatures gets thrown out during verification.
County Filing and Signature Verification
After the circulation window closes, file your petitions with the elections official in each county where signatures were gathered. All petition sections from a given county must be filed at the same time.8California Legislative Information. California Elections Code 9030
County officials then have eight business days to count the raw totals and report them to the Secretary of State. If the statewide raw count is below 100% of the requirement, the effort ends there. If the count meets or exceeds 100%, the Secretary of State orders a random-sample verification across the counties.8California Legislative Information. California Elections Code 9030 The result decides what happens next:
- If the sample projects valid signatures above 110% of the requirement, the measure qualifies immediately.
- If the projection falls between 95% and 110%, a full signature-by-signature verification is ordered across every county.
- If the projection is below 95%, the petition fails.
This is why experienced proponents aim comfortably above the 110% mark on raw signatures. Falling into the 95-to-110 band triggers a slow full count that can push qualification past the deadline for the next election.
The Ballot Deadline and Proposition Number
Initiatives appear only on a general election or a special statewide election. Qualification must be complete at least 131 days before that election. On the 131st day, the Secretary of State issues the certificate of qualification and assigns the measure a proposition number.9Orange County Registrar of Voters. California Elections Code 9033 Work backward from that date when planning filing, circulation, and verification timelines.
Pulling a Measure Before the Vote
Proponents sometimes use a qualified initiative to pressure the legislature into passing a similar bill, then withdraw the measure once a deal is in place. Withdrawal is allowed up until 5:00 p.m. on the day the Secretary of State certifies that the measure has qualified for the ballot, with written notice to the Secretary of State required if petitions have already been filed.10California Legislative Information. California Elections Code 9604 After certification, the measure is locked onto the ballot. Accepting payment in exchange for withdrawing an initiative is a crime.
What Happens After Voters Approve
A measure that wins a simple majority takes effect on the fifth day after the Secretary of State files the official statement of vote, unless the measure sets a later date.11Justia. California Constitution Article II Section 10 – Voting, Initiative and Referendum, and Recall Some initiatives include delayed implementation to give agencies time to write regulations, but the default is near-immediate.
Voter-approved initiatives are hard for the legislature to change. The Constitution bars lawmakers from amending or repealing an initiative statute unless the measure’s own text explicitly permits it. Without that permission, any change must go back to voters.11Justia. California Constitution Article II Section 10 – Voting, Initiative and Referendum, and Recall Many campaigns include a clause allowing limited legislative amendments, often requiring a supermajority, so the law can be adjusted without a new election.
If two competing initiatives pass on the same ballot, the one with more “yes” votes controls wherever the two conflict.11Justia. California Constitution Article II Section 10 – Voting, Initiative and Referendum, and Recall Opponents sometimes place a rival measure on the same ballot specifically to override provisions of the one they dislike, so draft your text with that scenario in mind.